KR20010007090A - Method and apparatus for producing belt member - Google Patents

Abstract

PURPOSE: To securely remove odds to be produced when the cutting angle of a strip constituting a belt material is changed and thereby effectively prevent a molded tire from becoming deteriorated qualitatively. CONSTITUTION: When the specifications of a belt material B are changed, the cutting angle θ of a strip S is changed to a low angle α or a high angle β. In this case, only the tip of the first piece of the strip S which constitutes the belt material B remains unchanged as specified compared to the preceding set specifications. Therefore, odds are produced without exception, when the belt material B is cut to the specifications. In order not to prevent the odd from remaining left at a splicing position, a transport conveyor 7 is forwardly rotated or reversed to transfer the odd of the strip S from the splicing position to an arbitrarily selected position. Then the odd is made to fall from the transport conveyor 7 or is removed from the transport conveyor 7 by an operator or using a robot or the like.

Description

Method for removing cut by-products of belt member and apparatus therefor {Method and apparatus for producing belt member}

The present invention relates to a method and a device for removing the cutting by-product of the belt member, and more particularly, to effectively and reliably remove the cutting by-product generated at the time of changing the cutting angle of the strip material from the splice position, to prevent deterioration of tire quality. The present invention relates to a method for removing a cut by-product of a belt member and an apparatus thereof.

Conventionally, as a method for forming a belt member of an air-injected radial tire, for the purpose of eliminating the trouble of preparing various types of belt members, for example, as disclosed in Japanese Patent Application Laid-Open No. 11-99564, a plurality of The strip pieces cut by a predetermined width and length of the fine width strip material made of reinforcement cords are inclined at predetermined angles with respect to the tire circumferential direction, respectively, and are integrally bonded to each other so as to face each other. It is proposed from the applicant of this application to comprise the perimeter.

However, when the belt member molding method as described above is performed, the belt angle B for one tire differs depending on the tire specification. Therefore, when the cutting angle is changed correspondingly, FIGS. 3 and 4A to FIG. As shown in 4c, it is necessary to change the cutting angle by turning the strip material S around the point O on the low angle α side or the high angle β side.

In addition, after the cutting angle is changed, only the tip Sa of the first strip member S constituting the belt member B remains the same as the previous specification. Cleavage by-products (segments discarded due to insufficient dimensions: Q) occur.

However, when the above-mentioned cutting by-products Q remain on the conveying conveyor of the belt material B, the cutting by-products Q may be mixed and supplied at the time of supply of the belt material B to the tire molding machine side. A problem arises that the tire containing the cutting byproduct (Q) adversely affects the tire quality, and in order to prevent such a problem in advance, when the cutting byproduct is processed, a lot of trouble and time is required for the processing of the cutting byproduct. There was problem that it took.

DISCLOSURE OF THE INVENTION An object of the present invention is to provide a method and apparatus for removing a cut by-product of a belt member which reliably removes cut by-products generated at the time of changing the cutting angle of the strip member constituting the belt material, thereby effectively preventing deterioration of the quality of the molded tire. It is in doing it.

In order to achieve the above object, the present invention provides a method for removing the cutting by-product of the belt member, wherein the cutting by-product generated by cutting the strip material terminal part at the time of changing the cutting angle of the strip material is driven by electrostatic or reverse driving the conveying conveyor of the belt material. It is to be removed from the splice position of an image.

Further, the cutting by-product removal device of the belt member of the present invention is a cutting device for deflecting and cutting an elongate strip material, and a direction in which the cutting by-products generated when cutting the strip material or the terminal portion of the strip material intersect the conveying direction of the strip material. It is made into the summary which consisted of the conveyance conveyor which can carry out the electrostatic or reverse drive conveyed by this, and the splice apparatus which sequentially arranges and splices while conveying strip pieces intermittently by this conveyance conveyor.

The present invention is configured as described above, and the cutting by-products are automatically removed from the vicinity of the splice position of the strip piece without passing a human hand by cutting the by-products generated at the change of the cutting angle of the strip member constituting the belt material. Since it is not supplied to the side to prevent deterioration of tire quality, it is possible to manufacture a high quality tire.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic plan view of a first embodiment of a cleavage byproduct removal apparatus for carrying out a cleavage byproduct removal method of a belt member of the present invention.

FIG. 2 is a schematic cross-sectional view of the alignment splice device of the strip material in FIG. 1. FIG.

3 is a schematic plan view of an alignment splice device of a conventional strip material;

4A to 4C are explanatory views at the time of changing the cutting angle of a strip material.

Explanation of symbols on the main parts of the drawings

1: krill stand 2: rubber coating device

3: extractor 4: fastener

5 standard-length feed device 6 cutting device

6a: Cutting position 7: Conveyor conveyor

8: alignment splice device 10: belt forming drum

S: Strip material Sa: Tip of strip material

S ': Strip piece Q: Cut by-product of strip material

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described with reference to an accompanying drawing.

In addition, the same code | symbol is attached | subjected to the same component as a conventional example, and description is abbreviate | omitted.

1 shows a schematic plan view of a first embodiment of a cutting byproduct removing apparatus for carrying out the method of removing a cutting byproduct of the belt member of the present invention, in which 1 is a reinforcing cord f consisting of a plurality of steel cords. A krill stand for supplying 2, a rubber coating device for rubber coating the reinforcing cord f to be formed on the strip material S, 3 a drawing device for drawing out the strip material S, and 4 for the strip material S. A fastener for temporarily staying, 5 is a standard-length feed device for intermittently feeding the strip material S, 6 is a cutting device for cutting the strip material S at a predetermined length at an angle, each of which is approximately in series It is arranged.

In the direction which intersects with each said apparatus, the conveyance conveyor 7 which is able to receive the many strip pieces S 'cut | disconnected by predetermined length in the forward or reverse rotation is arrange | positioned, and the said conveyance 7 is conveyed on this conveyance conveyor 7 And an alignment splice device 8 for splicing and joining the longitudinal directions of the aligned strip pieces S '.

On the carrying-out side of the conveying conveyor 7, a belt forming drum 10 is formed to wind and shape the belt material B corresponding to one tire through the intermediate conveyor 9.

The krill stand 1 is suspended with a plurality of reels in which the reinforcing cords f are wound, and the rubber coating device 2 pitches a plurality of reinforcing cords drawn out from the krill stand 1 at a constant pitch to each other. In addition, the unvulcanized rubber is extruded and rubber-coated in parallel with each other, and the strip material S having a constant width having a tapered surface at both ends in the width direction in a parallelogram is continuously formed. .

Further, the width H of the strip material S is 5 to 60 mm, preferably 10 to 30 mm.

The drawing device 3 connected to the coating device 2 continuously unwinds the reinforcing cord f from the krill stand 1, and is molded into the strip material S with the rubber coating device 2 to the arrow. It draws out continuously in a (X) direction.

A fastener 4 is connected to the take-out device 3, and the fastener 4 absorbs a speed difference between the continuous withdrawal speed of the take-out device 3 and the intermittent feed speed of the standard-length feed device 5. The strip material S is suspended in the loop portion in the space portion 4c formed between the rollers 4a and 4b which are driven and controlled based on the amount of the strip material S to be retained.

The fastener 4 is connected to a standard-length conveying device 5 via a pre-roller conveyor, and the standard-length conveying device 5 is configured to convey the strip material S intermittently to a belt width every fixed length. It is.

Further, the standard-length conveying device 5 is configured to be pivotable on both sides as indicated by the arrow Y about the position O on the cutting line 6a on the cutting device 6 side, and the strip The angle supplied to the conveyance conveyor 7 of the ashes S can be adjusted by the low angle (alpha) or the high angle (beta). Then, when the cutting angle of the strip material S is changed, the cutting byproduct Q is generated as described above.

The cutting device 6 transfers the strip material S conveyed to the conveying conveyor 7 side by a standard-length conveying device 5 at a predetermined cutting angle θ with respect to the conveying direction. S ') is sequentially cut into predetermined lengths. The strip material S is cut to a predetermined length in parallel with the conveying direction of the conveying conveyor.

The conveying conveyor 7 alternately and intermittently conveys in synchronization with the standard-length conveying apparatus 5, and is configured to convey the belt material B intermittently at predetermined lengths toward the belt forming drum 10 side. have.

The alignment splice device 8 is arranged along a supply path that sends the strip material S to the conveying conveyor 7 in its transverse direction, as shown in FIG. 2, and at the rear edge side of the strip material S. A first guide 11 having a bottom plate 11a for supporting the side and a side plate 11b for regulating the position of the rear edge side, and a side plate 12a for regulating the position of the front edge side of the strip material S. The 2nd guide 12 which has is provided.

The first guide 11 is movable back and forth in a direction perpendicular to the first guide side surface by the operation of the cylinder 15 attached to the support frame 14. The second guide 12 is movable up and down by the operation of the cylinder 16 attached to the support frame 14.

The splice press 13 which press-bonds strip pieces between the 1st guide 11 and the 2nd guide 12 is arrange | positioned. This splice press 13 is moved up and down along the side plate 12a of the 2nd guide 12 by operation of the cylinder 17 attached to the support frame 14. 18 is a press pedestal provided inside the conveyor belt 7a.

In the first and second guides 11 and 12 and the splice press 13, the distance c between the side plates 11b and 12a is equal to or slightly longer than the total width g of the strip material S. In addition, the length (d + e) of the width (d) of the bottom plate (11a) and the width (e) of the splice press 13 is equal to the total width (g) of the strip material (S) or It is desirable to shorten it slightly.

The supporting frame 14 is a position on the cutting line 6a on the side of the cutting device 6 in which the standard-length feed device 5 is pivoted to change the cutting angle θ of the cutting device 6. Extending direction and standard-length conveying device 5 of the first and second guides 11 and 12 and the splice press 13 which pivotally move around O) and extend in the transverse direction of the conveying direction Z. ), The feed direction always matches.

Next, a first embodiment of the method for removing cut by-products of the strip material S will be described.

First, a plurality of reinforcing cords f are continuously drawn out by the take-out device 3 from the reel supported by the krill stand 1, and the rubber-coated device 2 takes out the rubber into unvulcanized rubber to form a cross-sectional parallelogram. It is molded into strip material S having a predetermined width.

The strip material S formed to a certain width is conveyed from the take-out device 3 to the fastener 4 and temporarily stayed thereafter, and is then intermittently conveyed by the standard-length conveying device 5 by a predetermined length. It is brought to the side. In this standard-length conveying apparatus 5, the strip material S is conveyed to the conveyer conveyor 7 side by the cutting | disconnection position 6a of the cutting device 6 by the predetermined length according to the belt width.

The tip Sa of the strip material S conveyed to the conveying conveyor 7 side by the standard-length conveying device 5 is guided to the side plates 11b and 12a of the first and second guides 11 and 12. Then, the bottom plate 11a is moved and loaded into the bottom plate 11a so that a position shift or deformation does not occur.

Subsequently, the front end portion Sa of the strip material S is cut by the cutting device 6 to a predetermined length at the cutting angle θ. When cutting is complete | finished, the splice press 13 descends and presses the conveyor conveyance direction front edge part (left end part) of the cut strip piece S'1 on the conveyor belt 7a, and splice presses ( 13) and the conveyor belt 7a. The first guide 11 retreats backward in the direction perpendicular to the first guide side surface, and loads the strip piece S'1 on the conveyor belt 7a. The strip piece S'1 on the conveyor belt 7a is self-supported on the conveyor belt 7a by the magnet 7b.

When the strip piece S'1 is moved and stacked on the conveyor belt 7a, the splice press 13 rises and waits in the standby position of FIG. 2, while the second guide 12 is in the upper standby position. To rise.

Subsequently, the conveying conveyor 7 is operated, and the forming drum is transported by the same conveying amount as the length P of the cutting plane inclined at the cutting angle θ of the strip piece S'1 moved and stacked on the conveyor belt 7a. It returns to (10) side. After conveyance, the second guide 12 descends to the guide position as shown in FIG. 2, while the first guide 11 advances to the guide position of FIG. 2 in a direction perpendicular to the first guide side surface.

When both guides 11 and 12 move to the guide position, the tip end portion of the strip material S is again moved from the cutting position 6a to the conveying conveyor 7 side by the standard-length conveying device 5. It is guided to the guides 11 and 12, and it is conveyed to a predetermined length, and the front-end | tip part of the strip material S is cut | disconnected to strip piece S'2 by the cutting device 6 to predetermined length.

Next, the splice press 13 descends and presses the conveyance direction front edge of the strip piece S'2. At this time, since the previous strip piece S'1 is conveyed to the forming drum 10 side by the same length as the length of the cut surface of the conveyor belt 7a, the strip piece S'2 of the cross-sectional parallelogram is conveyed. The edges are crimped together so that the direction front end surface a is abutted against the conveyance direction rear end surface b of the front strip piece S'1.

After joining, the first guide 11 maintains the guide position, while the splice press 13 and the second guide 12 are raised to the standby position, and the joined strip pieces S'1 and S'2 are joined. On the conveyor belt 7a in the same manner as described above, and conveyed to the forming drum F side by a feed amount equal to the length P of the cut surface. When the second guide 12 is moved to the guide position, the strip member S is again transferred between the first and second guides 11 and 12 by the standard-length conveying device 5, and the above-mentioned predetermined length cutting is performed. The process of joining and conveying predetermined length is performed repeatedly, and the strip piece is sequentially aligned in the conveyance direction on the conveyor belt 7a of the conveyance conveyor 7, and the strip piece S'1, S of the same width of the purified water sheet is carried out. The belt member B of the circumferential length L of the one-tire belt layer made of '2, S'3 ...) is molded.

The belt member B spliced by one tire is transferred to the belt forming drum 10 as it is and wound on the drum outer rim, and the front end and the rear end are spliced with each other to form a belt having a circular cross section. do.

Next, when the specification of the belt member B is changed, the cutting angle θ of the strip member S is changed to the low angle α or the high angle β. At this time, since only the tip of the first strip member Sa constituting the belt member B, as described above, remains the same as the previous specification, when cut in accordance with the specification, as shown in FIGS. 4A to 4C. Likewise, cleavage by-products (Q) occur.

This cutting by-product Q is supplied to the belt forming drum 10 side while remaining in the conveying conveyor 7, and when used in a mixed state, adversely affects the tire quality, so it is necessary to remove it reliably.

In the present invention, since the cutting by-product Q generated at the time of changing the cutting angle is not left at the splice position, the conveying conveyor 7 is rotated forward or reverse to splice the cutting by-product Q of the strip material S. It transfers from a position to arbitrary positions, falls on the conveyance conveyor 7, or removes it from the conveyance conveyor 7 by a worker, or removes it using a robot etc. as a cutting by-product removal means.

Thereby, the problem of tire quality resulting from the cutting by-product Q can also be solved effectively.

Since the present invention is constituted as described above, since the by-products generated at the time of changing the cutting angle of the strip material constituting the belt material can be reliably removed from the conveying conveyor, the cut by-products are not supplied to the tire molding machine side, and thus the tire quality is improved. By preventing the deterioration of the tire, it is possible to manufacture a tire of good quality, and there is an effect that can improve the productivity of the tire.

Claims (3)

In the cutting by-product removal method which cut | disconnects a continuous strip material to predetermined length, arranges and splices sequentially, moving intermittently in the direction which intersects the conveyance direction of a strip material, and shape | molds a strip | belt-shaped belt material. A method of removing the cut by-product of the belt member, wherein the cutting by-product generated by cutting the strip material terminal portion is removed from the splice position on the conveying conveyor by driving the conveying conveyor of the belt member forward or reverse rotation when the cutting angle of the strip member is changed. A cutting device for deflecting and cutting the elongated strip material, and a conveying conveyor capable of forward or reverse rotation driving to convey the cutting material generated when the strip material or the terminal portion of the strip material is cut in a direction crossing the conveying direction of the strip material; And a by-product removal apparatus for a belt member, comprising a splice device that sequentially aligns and splices strip pieces while intermittently moving by the conveying conveyor. 3. The cutting by-product removal apparatus of the belt member according to claim 2, wherein the cutting by-product removing means is provided in the vicinity of the splice apparatus to support the cutting by-product of the strip material remaining at the splice position and to remove it from the splice position on the conveying conveyor.